"No textures were loaded..." issue (fixed)

So, downloaded and installed on OS X, but when I open the app it says 'No textures were loaded because they were not found at the expected location, run Setup to repair the installation', but then when I try to begin a new project, it just locks up and has to be force quit. Any ideas?

There are some rare cases where the folders that are created when HitFilm launches for the first time cannot be created. This can sometimes be a permissions issue. But if the software works on a newly created Mac account but not on your main account, you will need to manually copy some folders from the new account to the old one.

Instructions on how to do this are below, sorry it's quite a long process.